/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Mechanics/PolyLassoMarqueeMechanic.h
Called as the user drags the other corner of the PolyLasso around.
typedef TMulticastDelegate_OneParam< void, const [FCameraPolyLasso](API\Plugins\ModelingComponents\Mechanics\FCameraPolyLasso) & > OnDrawPolyLassoChangedEvent